參數(shù)資料
型號: LTC3859IUHF#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, 900 kHz SWITCHING FREQ-MAX, PQCC38
封裝: 5 X 7 MM, LEAD FREE, PLASTIC, MO-220WHKD, QFN-38
文件頁數(shù): 12/42頁
文件大?。?/td> 624K
代理商: LTC3859IUHF#TRPBF
LTC3859
2
3859fa
ABSOLUTE MAXIMUM RATINGS
Bias Input Supply Voltage (VBIAS).............. –0.3V to 40V
Buck Top Side Driver Voltages
(BOOST1, BOOST2) ............................. –0.3V to 46V
Boost Top Side Driver Voltages
(BOOST3) ............................................ –0.3V to 76V
Buck Switch Voltage (SW1, SW2) ................ –5V to 40V
Boost Switch Voltage (SW3) ........................ –5V to 70V
INTVCC, (BOOST1–SW1),
(BOOST2–SW2), (BOOST3–SW3),.......... –0.3V to 6V
RUN1, RUN2, RUN3 .................................... –0.3V to 8V
Maximum Current Sourced Into Pin
from Source >8V...............................................100μA
(Notes 1, 3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
TOP VIEW
FE PACKAGE
38-LEAD PLASTIC TSSOP
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
ITH1
VFB1
SENSE1+
SENSE1
FREQ
PLLIN/MODE
SS3
SENSE3+
SENSE3
VFB3
ITH3
SGND
RUN1
RUN2
RUN3
SENSE2
SENSE2+
VFB2
ITH2
TRACK/SS1
PGOOD1
TG1
SW1
BOOST1
BG1
SW3
TG3
BOOST3
BG3
VBIAS
EXTVCC
INTVCC
BG2
BOOST2
SW2
TG2
OV3
TRACK/SS2
39
PGND
TJMAX = 125°C,
qJA = 25°C/W
EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB
13 14 15 16
TOP VIEW
39
PGND
UHF PACKAGE
38-LEAD (5mm
7mm) PLASTIC QFN
17 18 19
38 37 36 35 34 33 32
24
25
26
27
28
29
30
31
8
7
6
5
4
3
2
1
FREQ
PLLIN/MODE
SS3
SENSE3+
SENSE3
VFB3
ITH3
SGND
RUN1
RUN2
RUN3
SENSE2
SW1
BOOST1
BG1
SW3
TG3
BOOST3
BG3
VBIAS
EXTVCC
INTVCC
BG2
BOOST2
SENSE1
SENSE1
+
V
FB1
I TH1
TRACK/SS1
PGOOD1
TG1
SENSE2
+
V
FB2
I TH2
TRACK/SS2
OV3
TG2
SW2
23
22
21
20
9
10
11
12
TJMAX = 125°C,
qJA = 34°C/W
EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB
PIN CONFIGURATION
SENSE1+, SENSE2+, SENSE1
SENSE2Voltages ..................................... –0.3V to 28V
SENSE3+, SENSE3Voltages..................... –0.3V to 40V
FREQ Voltages ...................................... –0.3V to INTVCC
EXTVCC....................................................... –0.3V to 14V
ITH1, ITH2, ITH3, VFB1, VFB2, VFB3 Voltages .... –0.3V to 6V
PLLIN/MODE, PGOOD1, OV3 Voltages ....... –0.3V to 6V
TRACK/SS1, TRACK/SS2, SS3 Voltages ..... –0.3V to 6V
Operating Junction Temperature Range
(Note 2) ............................................. –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
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